His claim is based on micrography
, sustaining that the letters have no real meaning, as they are actually composed of many small signs, which can be seen only under a magnifying glass.
in Islam is much older than that, but the use of magnifying glasses is not attested.
Among his topics are steel as a material, metallography technique: macrography and micrography
, electron microscopy and other advanced techniques, equilibrium phases and constituents in the iron-carbon system, conventional heat treatments: usual constituents and their formation, the mechanical work of steels: cold working, advanced steels for forming operations, engineered special bar quality steel, and metallographic evaluation: guidelines for performing and reporting.
Detailed optical micrography
confirmed the defects were dross and pinholes related to magnesium vapors.
Characters 139 and 141 are clearly visible with synchrotron radiation X-ray tomographic micrography
From the micrography
analysis it was possible to verify the film with Igepal has a better dispersion of the matrix when compared with the film without Igepal.
As a possible prospective buyer, you can even touch the treasures, or, at minimum, make someone else touch them: A couple weeks ago, at a public display of the lots on sale at a December 20th auction of Important Judaica, I watched in mild amazement as a curator opened a 14th-century illuminated Tanach to show off the trellises of micrography
looping across its opening pages.
Linguistically there is a concentration on the West, most of the manuscripts under discussion being in Latin, but with some French, Italian and German material, as well as one paper on letter shapes in Syriac and another on micrography
in Ashkenazi Hebrew documents.
Caption: Figure 11: SEM-HR micrography
of NCs (x100,000) obtained by (a) transmitted electrons and (b) backscattered electrons.
The physical processes that describe Raman and SEM characterizations are different, so even though the characterized area by SEM is larger, of about 25 [micro][m.sup.2] (for the analyzed micrography
), the punctual excitation is smaller, approximately of 0.05 [micro][m.sup.2], while Raman characterization excited area is of less than 4 [micro][m.sup.2], obtaining punctual characterizations.
Caption: Figure 2: Micrography
of particles obtained at pH of 1.75, 15[degrees]C, 0.08 g of TW80, and 1 g of ECA.
Each sample was observed at an accelerating potential of 20 kV under high vacuum during micrography